MANY. Black twinberry honeysuckle, Lonicera involucrata. Another dangerous berry is the American bittersweet. This plant is a member of the buttercup family. The berries are poisonous to humans. Okay, this is a two parter because there are just SO. Leaves can be confused with leaves of other shrubs with edible berries. red- to white-colored berries held upright. It has yellow-orange or red berries and can cause diarrhea when eaten. https://practicalselfreliance.com/edible-wild-berries-fruits This shrub has large elliptical leaves arranged opposite from each other on the stem. Ripe berries of the poison ivy turn whitish to pale green in color 1. https://www.gettystewart.com/red-berries-edible-or-not-edible Poison ivy has three-leaf clusters growing alternately on the hairy, thornless vine. It is commonly used for fall wreaths.